so we went from "Christianity recognized that individualism is the seed of satanism" to "I think individualism is satanic. Because that is what the atheists preach."
Keep in mind that Satan does have a seed of truth in what he says. That what makes him so devious even a blind squirrel gets a nut. As far as individualism goes...
12 Just as a body, though one, has many parts, but all its many parts form one body, so it is with Christ. 13 For we were all baptized by[
c] one Spirit so as to form one body—whether Jews or Gentiles, slave or free—and we were all given the one Spirit to drink. 14 Even so the body is not made up of one part but of many.
15 Now if the foot should say, "Because I am not a hand, I do not belong to the body," it would not for that reason stop being part of the body. 16 And if the ear should say, "Because I am not an eye, I do not belong to the body," it would not for that reason stop being part of the body. 17 If the whole body were an eye, where would the sense of hearing be? If the whole body were an ear, where would the sense of smell be? 18 But in fact God has placed the parts in the body, every one of them, just as he wanted them to be. 19 If they were all one part, where would the body be? 20 As it is, there are many parts, but one body.
21 The eye cannot say to the hand, "I don't need you!" And the head cannot say to the feet, "I don't need you!" 22 On the contrary, those parts of the body that seem to be weaker are indispensable, 23 and the parts that we think are less honorable we treat with special honor. And the parts that are unpresentable are treated with special modesty, 24 while our presentable parts need no special treatment. But God has put the body together, giving greater honor to the parts that lacked it, 25 so that there should be no division in the body, but that its parts should have equal concern for each other.
That's more indivdualist than I think you give it credit for. As we've seen throughout history collectivist scoities tend to value certain body parts over others if not straight up demand that everyone be of a single body part. things Paul is directly rebuking.